Calculating-machine.



No. 694,897. Patented Mar. 4, I902.

J. W. SLUSS.

CALCULATING MACHINE.

(Application filed Dec. 27, 1901.)

(No Model.)

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UNITED STATEs PATENT @FFICE.

JAMES IV. SLOSS, OF BIRMINGHAM, ALABAMA.

CALCULATING-MACHINE.

SPECIFICATION forming part of Letters Patent N 0. 694,897, dated March 4, 1902.

Application filed Dece1nherZ'7,190l. Serial No. 87,421. (No model.)

To ctZZ whom (It may concern;

Be it known that I, JAMES \V. SLOSS, a citizen of the United States, residing at Birmingham, in the county of Jefferson and State of Alabama, have invented certain new and useful Improvements in Galculatirig-Machines; andIdo declare the following to beafull,clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

My invention relates to such calculatingmachines as, by the manipulation of keys and one or more levers, print the desired figures and calculate and print the sum of those figures. In machines of this class'when one or more figures in any of the left-hand columns is printed the spaces to the right of such figures are occupied by ciphers through to the units-place.

My improvement enables the operator to use one or more left-hand columns or rows of keys for printing dates or numbers and the remaining columns for putting down amounts, eliminating ciphers or other figures between said columns of dates or numbers and of amounts, and to print the sum of the amounts without printing the sum of the dates or numbers, and yet to permit all the rows or columns to be used for amounts, if desired.

The accompanying drawings illustrate the invention, Figure 1 being a side elevation and showing some of the adjacent parts, and Fig, 2 a rear or edge view of the device. Fig. 3 is an edge View of a series of triggers in use in calculatin -machines illustrated in the patent mentioned below.

Like letters of reference denote cor responding parts in the different views.

The invention is illustrated in connection with a Bnrroughs calculating-machine patented September 12, 1893, numbered 505,078, and applies to all the triggers on the left of the one operating to record the unit figure. In views numbered 3 and. -l of that patent the triggers numbered 717, corresponding to the part lettered D in my drawings, have each a laterallyextended lug d arranged ashort distance in advance of a heel or lip (Z of the next adjacent trigger, so that when any one trigger is drawn back its lug (1' will after a limited movement strike the heel (Z of the next trigger on the right and also swing it backward, and so on, the movement being imparted from one figure to the next untilall of the triggers at the right of the one directly operated have acted to release the adjacent drivers, whereby all of the said typecarrying ciphers are struck and the ciphers printed at the right of the figure or figures set in position by the operation of the keys. I make the part of this trigger which I have lettered (Z undivided into prongs and in or approximately in the same plane as the body of the trigger, so that when a trigger is swung back it will act independently and will not engage an adjacent trigger on the right or left, on which account the figure struck will stand alone and other figures may or may not be thrown into position either in the next figure-space in the line or after an interven ing space, and no ciphers or figures will be printed in said intervening space unless keys are struck for that purpose. I also produce the same result by omitting the heel d since the function of that heel is to engage the lug d on the adjacent trigger, and of course the same result is secured by omitting both the heel and the lug, including more or less of the entire part lettered d in my drawings.

The trigger D is made with a varying outline in different machines, being adapted by notches, catches, or otherwise to engage other parts which it actuates or by which it is actuated, and I do not limit myself to the precise form shown or to any particular form of the trigger in profile or side view, but make it throughout in approximately the same plane or so that when sprung it does not engage the adjacent trigger.

What I claim and desire to secure is 1. In combination with the retractor and the striker of a calculating-machine a trigger, located to operate in any space to the left of the units-column, and having its part (Z undivided and approximately in the same plane as the body of the trigger, for the purpose specified.

2. In the recording mechanism of a caleu- In testimony whereof I affix my signature letting-machine, having a retraetor for drawin presence of two witnesses. I ing back the striker and a trigger for releas- I ing the striker, the said trigger located to the I I 5 left of any other trigger,'and adapted to act Witnesses:

independently of the adjacent trigger on its JOHN F. COX, right, as herein set forth. GE E, FREOH JAMES W. sLoss. 

